Product Description: The axis color representing the familiar colors you see in everyday life. The color is reminiscent of the sun-colored summer that is just picked up when exposed to sunshine. Features: Simple and more sophisticated shaft design The shaft material is unified with the rear axis and the tip axis, and the smooth design has been reduced as far as possible (uneven). The longer tip axis makes the streamline shape to the tip more smooth, giving a neat and clean impression. - Equipped with a "stabilizer mechanism" with a low center of gravity for stable writing The tip of the refills is made with metal nib with increased dimensional accuracy, providing a low center of gravity for a more stable and smoother writing experience. It can be used to write with light and steady and slurling so it is not only suitable for studying and writing notes, but also for journaling. Not only is it comfortable to write, but the metal tip stands out from the sharpness of the design, giving it a refined and high-quality impression. Features of "Uni-Ball One Ink" The uni-ball one ink is different from common gel inks, and uses new pigments to minimize the penetration of colored materials into paper fibers. (1) Black is darker and the colors are more vibrant, so you can write crisp letters that are easy to remember. (2) Quick-drying ink that does not bleed Specifications: Ink Color: Black Ball Diameter: 0.01 inch (0.38 mm)